Question 1

Choose the true statement concerning the relative acid strengths of H2SO4 and H2SO3.

Accepted Answer

A) H2SO4 is a stronger acid than H2SO3 because the S in H2SO4 has a more positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
B) H2SO4 is a weaker acid than H2SO3 because the S in H2SO4 has a more positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
C) H2SO4 is a stronger acid than H2SO3 because the S in H2SO4 has a less positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
D) H2SO4 is a weaker acid than H2SO3 because the S in H2SO4 has a more negative oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
A) H2SO4 is a stronger acid than H2SO3 because the S in H2SO4 has a more positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
B) H2SO4 is a weaker acid than H2SO3 because the S in H2SO4 has a more positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
C) H2SO4 is a stronger acid than H2SO3 because the S in H2SO4 has a less positive oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds. 
D) H2SO4 is a weaker acid than H2SO3 because the S in H2SO4 has a more negative oxidation state than the S in H2SO3 which influences the polarity of the O-H bonds.

Question 2

In which of the following compounds is sulfur in a positive oxidation state?

Accepted Answer

A) H2S 
B) S8 
C) CaS 
D) MnS 
E) SO3 
A) H2S 
B) S8 
C) CaS 
D) MnS 
E) SO3

Question 3

In which of the following compounds is nitrogen in a positive oxidation state?

Accepted Answer

A) NH3 
B) N2H4 
C) NH2OH 
D) N2 
E) NO 
A) NH3 
B) N2H4 
C) NH2OH 
D) N2 
E) NO

Question 4

P4O6 and P4O10 are allotropes of phosphorus.

Accepted Answer

A) True 
 B)False

Question 5

Write the chemical formula of the superoxide ion.

Accepted Answer

The answer of Write the chemical formula of the superoxide...

Question 6

Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the water gas reaction.

Accepted Answer

C(s)+ H₂O(g

Question 7

Ozone (O3)and oxygen gas (O2)are examples of

Accepted Answer

A) isotopes. 
B) allotropes. 
C) polymorphs. 
D) alloys. 
E) amphoterism. 
A) isotopes. 
B) allotropes. 
C) polymorphs. 
D) alloys. 
E) amphoterism.

Question 8

The chemistry of fluorine differs in many ways from that of the rest of the halogens.

Accepted Answer

A) True 
 B)False

Question 9

When phosphate rock, Ca3(PO4)2(s), is converted to phosphorus,

Accepted Answer

A) one of the products of the reaction is water. 
B) sulfuric acid is added to generate insoluble calcium sulfate. 
C) hydrogen is used to reduce the phosphate to phosphorus. 
D) silica is added to form a calcium silicate slag. 
E) oxygen must be added to prevent reaction of P4. 
A) one of the products of the reaction is water. 
B) sulfuric acid is added to generate insoluble calcium sulfate. 
C) hydrogen is used to reduce the phosphate to phosphorus. 
D) silica is added to form a calcium silicate slag. 
E) oxygen must be added to prevent reaction of P4.

Question 10

Which one of these elements is not a gas at room temperature?

Accepted Answer

A) chlorine 
B) fluorine 
C) nitrogen 
D) oxygen 
E) sulfur 
A) chlorine 
B) fluorine 
C) nitrogen 
D) oxygen 
E) sulfur

Question 11

Choose the formula that does not represent a stable allotrope.

Accepted Answer

A) N2 
B) S8 
C) O2 
D) P2 
E) I2 
A) N2 
B) S8 
C) O2 
D) P2 
E) I2

Question 12

Which one of the following compounds can react with water to form hydrogen gas?

Accepted Answer

A) PCl5 
B) NO2 
C) H2O2 
D) KH 
E) NH3 
A) PCl5 
B) NO2 
C) H2O2 
D) KH 
E) NH3

Choose the true statement concerning the relative acid strengths of H₂SO₄and H₂SO_3.

In which of the following compounds is sulfur in a positive oxidation state?

In which of the following compounds is nitrogen in a positive oxidation state?

P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

Write the chemical formula of the superoxide ion.

Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the water gas reaction.

Ozone (O₃)and oxygen gas (O₂)are examples of

The chemistry of fluorine differs in many ways from that of the rest of the halogens.

When phosphate rock, Ca₃(PO₄)₂(s), is converted to phosphorus,

Which one of these elements is not a gas at room temperature?

Choose the formula that does not represent a stable allotrope.

Which one of the following compounds can react with water to form hydrogen gas?

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

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Exam 22: Nonmetallic Elements and Their Compounds

Choose the true statement concerning the relative acid strengths of H2SO4 and H2SO3.

In which of the following compounds is sulfur in a positive oxidation state?

In which of the following compounds is nitrogen in a positive oxidation state?

P4O6 and P4O10 are allotropes of phosphorus.

Write the chemical formula of the superoxide ion.

Hydrogen plays an important role in many industrial processes.Write a balanced chemical equation for its production by the water gas reaction.

Ozone (O3)and oxygen gas (O2)are examples of

The chemistry of fluorine differs in many ways from that of the rest of the halogens.

When phosphate rock, Ca3(PO4)2(s), is converted to phosphorus,

Which one of these elements is not a gas at room temperature?

Choose the formula that does not represent a stable allotrope.

Which one of the following compounds can react with water to form hydrogen gas?

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Choose the true statement concerning the relative acid strengths of H₂SO₄and H₂SO_3.

P₄O₆ and P₄O₁₀ are allotropes of phosphorus.

Ozone (O₃)and oxygen gas (O₂)are examples of

When phosphate rock, Ca₃(PO₄)₂(s), is converted to phosphorus,